Hi Support,
Current Aspose.Diagram v.25.11.0 contains issues that break shapes grouping after a simple Open/Save diagram.
I believe this was broken by a fix to the following issue:
Steps to reproduce:
Diagram exam…...Broken shapes grouping in Visio document after simple Open/Save...Diagram v25.11.0 where opening a Visio (.vsdx) file and saving it again...